* AscendedFanon: Rainbow Dash calls a certain wall-eyed grey pegasus "Derpy" on-screen. If it wasn't canon before... it is now. Then ''de-canon'd'' by Hasbro executives after the "Ableist" Controversy (for lack of a better name for it).
* BasedOnADream: According to "The Elements of Harmony: Friendship is Magic", the interrogation scene with Applejack and Pinkie Pie was based on a dream Amy Keating Rogers had when she fell asleep with writers block while writing the episode.
* CreatorBacklash: The creators publicly apologized to both sides of the flame wars caused by Derpy's edit.
* CrossDressingVoices: With a bizarre twist. Tabitha St. Germain thought Derpy was a boy and voiced "him" accordingly, putting on her best male voice. Only after the episode's premiere on The Hub did the fans gently correct her.
** Played straight in Hungarian, where Derpy was voiced by a man.
* {{Defictionalization}}: Within a few hours of airing, at least one fan had prepared [[http://askwhiteoutpony.tumblr.com/post/16235535421/so-pinkie-inspired-me-and-i-made Pinkie's Chimi-cherry-changa recipe]]; [[http://www.equestriadaily.com/2012/01/chimicherrychonga-compilation.html several more had appeared]] within a day of airing.
* DevelopmentGag: The photo of Applejack that Rarity uses is based on Lauren Faust's concept sketch of her.
* EditedForSyndication: The scene with Rainbow and Derpy at town hall received complaints from those with disabilities, causing it to be heavily edited a few weeks after airdate. Notable is that Derby's voice is more feminine-like, the mention of her name was removed, and her eyes aren't as crossed in a few scenes.
* FandomNod: Considering that this episode canonized Derpy, it can't be coincidence that Dinky Hooves and Carrot Top (who are closely associated with Derpy in {{Fanon}}) make several cameos and can even be seen together when Applejack's train leaves, ''sitting in the train car that Derpy appears in during the season 2 opening sequence and [[Recap/MyLittlePonyFriendshipIsMagicS2E13HearthsWarmingEve the previous episode]]''.
* FirstAppearance: Of Cherry Jubilee.
* KeepCirculatingTheTapes: If you preferred the original version of Derpy's scene over the edited version, then you'd better keep a vicegrip on that ''Friendship Express'' DVD--it's the only place (outside of [=DVRs=] and Website/YouTube uploads) you'll be able to see it. Strangely, while the episode on {{Creator/Netflix}} is edited, the closed captions still refer to her as "Derpy".
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